Content delivery net works have multiple hubs (or points
of presence, or PoPs) spread out over a wide geographical
region. Large content publishers often use multiple CDNs,
since each CDN has PoPs in different regions, and to have
a backup in the unlikely event that the primary CDN has
network problems.

AWS Elemental Delta functions as an origin server
that can pass media streams or files on to a CDN for wider
distribution.

CONCLUSION

Though both compression and delivery are becomingmore complex as the number of devices increase and videoquality gets higher, products like AWS Elemental Live, AWS

Elemental Server, and AWS Elemental Delta do the heavylifting to help you efficiently deliver the highest-qualityvideo for your customers to watch any where, anytime, andon any device they choose.

Figure 12. An example of a content delivery network which caches video content closer to the “edge” of its network. While the first viewer may go to the origin server to get the video, subsequent
viewers can more efficiently access the same video from the edge location.